Closure for jars, bottles, jelly-glasses, &amp;c.



UNITED STATES PATENT OFFICE.

JOHN \V. KUNKEL, OF LAZEARVILLE, AND CLARENCE ROBINSON, OF

WELLSBURG, WEST VIRGINIA.

CLOSURE FOR JARS, BOTTLES, JELLY-GLASSE S, 8 c;

SPECIFICATION forming part of Letters Patent N 0. 721,897, dated March3, 1903.

' Application filed July 24, 1902. Serial No. 116,859. (No model.) I

To all whom, it may concern.

Beit known that we, JOHN W. KUNKEL, residing at Lazearville, andCLARENCE ROBIN- SON, residing at Wellsburgfin the county of Brooke andState of West Virginia, citizens of the United States, have invented anew and useful Closure for Jars, Bottles, Jelly- Glasses, &c., of whichthe followingis a specification.

This invention relates to air-tight closures for receptacles, and whileapplicable to any character of receptacle is particularly adapted forsealing fruit-jars. It is designed to facilitate the application andremoval of the cover, to maintain an air-tight closure between thereceptacle and the cover, and to have the latter form a flushcontinuation of the body of the jar, so as to avoid projections, andthereby permit of close packing of a plurality of jars.

With these and other objects in view the present invention consists inthe combina tion and arrangement of parts, as will be hereinafter morefully described, shown in the accompanying drawings, and particularlypointed out in the appended claim, it being understood that changes inthe form, proportion, size, and minor details may be made within thescope of the claim without departing from the spirit or sacrificing anyof the advantages of the invention.

In the drawings, Figure 1 is a sectional view taken through the coverand neck portion of a jar embodying the present improvements. Fig. 2 isa side elevation showing the cover in position to be applied to the jar,a portion of the cover being brokenaway to show one of thelocking-recesses therein. Fig. 3 is a top plan View of the jar. Fig. 4is an inverted plan view of the cover. Fig. 5 isa longitudinal sectionalview of the cover. Fig. 6 is a view similar to Fig. 1, showing a doubleseal form of the invention.

Like characters of reference designate corresponding parts in all of thefigures of the drawings.

Referring to the accompanying drawings, 1 designates the body of thejar, which is preferably cylindrical in shape and is provided at itsupper end with a reduced cylin- -ular shoulder 3.

drical neck 2, whereby the upper end of the jar,at the outer side of theneck,forms an an- An annular flange 4 rises from the top of the neck 2,flush with the inner side thereof, whereby the top of the neck forms aseat 5, which is adapted to receive a suitable packing-ring 6, theflange 4E forming a guard to prevent displacement of the packing-ringand to obviate contact of the contents of the jar with the ring. Uponthe exterior of the neck 2 are a plurality of lugs or projections 7,preferably three in number,

which are spaced at equal intervals around the neck of thejar. Eachprojection is flush with the top of the neck and inclines downwardly andtransversely of the jar, with its lower end terminated short of theshoulder 3.

For closing the open top of the jar there is provided a solid cover 8,which is cylindrical in shape and has a diameter corresponding to thatof the jar, so, that when seated thereon it forms a flush continuationof the jar, and thereby obviates projections. The under side of this capor cover is hollowed out to form a pendent peripheral flange 9, which isdesigned to embrace the neck 2 and rest upon the shoulder 3. The cap orcover is further hollowed outto form an inner annular shoulder 10, whichis designed to rest upon the packing-ring 6, the depth of the shoulderbeing sufficient to permit of considerable compression of the ringbefore the back of the cap or cover engages the top of the neck flange4. The inner side of the flange 9 is provided with sockets or recesses11, which correspond in number and disposition to the lugs orprojections 7 upon the neck of the jar and have their lower ends openingoutwardly through the lower edge of the cap or cover, so as to receivethe lugs when the cover is placed downwardly upon the neck of the jar,as will be understood by reference to Fig. 2 of the drawings. sockets orrecesses are inclined so as to correspond With the inclinations of thelugs or projections and are of a depth to readily receive the latterwhen the cap or cover is placed downwardly upon the jar. When the lugsor projections have been received in the recesses, the cap or cover isturned upon the These neck of the jar, whereby the projections acting ascams ride over the rear inclined faces of the sockets or recesses, andthereby draw the cap or cover downwardly into snug engagement with thepacking ring 6 and the shoulder 3 of the jar.

As illustrated in Fig. 6, it will be seen that the neck of the jar maybe provided with an additional intermediate shoulder 12 between theshoulder 5 and the flange 4, or, in other words, the neck may beprovided with a stepped series of peripheral flanges, the additionalflange being designed to support another packing-ring 13, the cap orcover being provided with an additional annular shoulder 14 to bear uponthe packing-ring 13, whereby a double seal is formed between the coverand the neck of the jar.

From the foregoing description it is apparent that the present inventiondispenses with all external fastenings, and it is merely necessary toplace the cover downwardly upon the neck of the jar and then turn thesame slightly to form an air-tight connection between the cover and thejar and at the same time to secure the cover, through the agency of thecam-lugs 7 and the recesses 11, to the jar, so as to prevent accidentaldisplacement thereof.

A very important feature of the invention resides in the fact that theexternal peripheries of the jar or cover and cap are flush, therebyobviating projections, and, furthermore, the packing-ring is securelyhoused between the jar and the cover and is thereby protected againstthe action of the external air and the contents of the jar.

What we claim is The combination of a cylindrical jar having a reducedcylindrical neck with a flat annular shoulder extending from the base ofthe neck to the outer edge of the body of the jar, an upstanding annularflange rising from the inner side of the neck, the top of the neck beingflat to form a packing-ring seat, a series of integral cam projectionsupon the exterior of the neck and terminated short of the top of thebody of the jar, a packing-ring upon the packing-ring seat and embracingthe neckflange, and a cylindrical cap or cover having a pendentperipheral flange to embrace the neck and rest upon the top of the jar,and also provided with an innerannular shoulder to embrace theneck-flange and bear upon the packing-ring, the inner face of thecoverflange being provided with a series of inclined sockets or recessescorresponding to the projections and opening outwardly through the loweredge of the flange, and the exterior of the cap or cover being flushwith the exterior of the jar.

In testimony that We claim the foregoing as our own we have heretoaflixed our signatures in the presence of two witnesses.

JOHN WV. KUNKEL. CLARENCE ROBINSON.

Witnesses:

MELVIN BAsFoRD, JOHN COCHRANE.

